Temple hinge



\ 1,616,965 1927' J. FIELDING ET AL TEMPLE' HINGE Filed Dec. 15, 1925JZJe afi z 51 27/595 er.

I N V EN TOR.

BY I 444; 444,

A TTORNEYS.

Patented Feb. 8, 1927.

UNITED STATES JOHN FIELDING, OF NORTH PROVTDENCE,

AND JOSEPH P. WHITAKER, OF .AIPII'POINATIG,

RHODE ISLAND.

TEMPLE KIN-GE.

1 Application filed December 15, 1925. Serial No. 75,570.

Thisv invention relates to improvements in the construction of hingesmore especially adapted for use in connecting temples to ophthalmicmountings; and the object of this invention is to so mount a pivotingbolt in the hinge as to positively lock the bolt against relativerotation therein by thread ing the bolt in one of the ear members of thehinge and providing a lock nut on the 1 threaded end thereof, whichconstruction serves in addition to locking the pivot bolt againstrotation, also serves by-adjustment to take up wear or lost motionbetween the interengaging hinge ears or members to obtain just thedesired friction in the joint to prevent looseness of the templeQ Withthese and other objects in "view, the invention consists of certainnovel features of construction, as will be more fully described, andparticularlypointed out in the appended claims. 1 I

In the accompanying drawings Figure 1 is a perspective View illustratinga fragmental portion of" an ophthalmic frame or mounting and showi'ng'myimproved hinge as connecting the; temple to the end pieceof the frame. 1I

' Figure 2 is an enlarged perspective view showing the hinge-plates witha plurality of interengaging cars, a pivot bolt passing ,through theears with the nut threaded on the end thereof.

Figure-3 is a modification showingJ-an enlarged perspective view partlyin section with one arrangement of a pivot bolt threaded into one'of theears and havinga lock nut screwed onto its end.

Figure 4 shows another form of hinge. in which one of the plates has apair of outside or end ears, the other plate having a single earpositioned between the end ears, and the pivot bolt being passed throughboth side ears and'threaded in one of the outside ears -with the locknut threaded onto the end of the bolt.

It is found inthe practical construction and operation of temple hingesfor ophthalmic mountings that the pivot pin often works loosepermittin'ga looseness in the joint and permitting a wabbling motion ofthe temple, which is very objectionable and in some cases injurious tothe wearer as the lenses are thus permitted move about .on the face outof there uired set positionand to obviate this diificu ty, I haveprovided a hinge having interengaging-hinge ear. members in one of whichmembers is-threaded a portion of the Pivot bolt and in which wehave=alsoem- 'ployed a binding "nut, which construction performs twofunctions first, the binding nut cooperates "with the threaded portionof the bolt in the ear member to serve as arlock for the bolt toeffectually prevent relative rotation of the bolt during the swingingaction of the temple; also-this nut when employed in suclra structure asthat illustrated in *igure 3, where the bolt is threaded .into theintermediatefear of the hinge, also serves to force the outer earagainst the next adjacent ear of the hinge to bind the same togethertotake upwear and ,lost motion between the parts'and prevent looseness ofthe temple so as not to detrimentall affect the vision of thewearer;.a'nd the to lowing is a detailed descriptionoff'the presentembodiment of our inventionandshowing a construction of hinge by which'these advantageous results may be accomplished:

With reference to the drawings, 10 designates an eye-wire of anon-metallic opthalmic mounting in which the lens 11 is set,

\ and 12 the end piece to which is hinged the temple 13 by our improvedconstruction of hinge l4.

These hinges may, insome cases, be constructed with hinge plates 15- and16, See Figure 3 the plate 15 having hinge cars 17 and 18 and one ormore intermediate hinge ears 19; while the plate 16 is provided withhinge ears Q'Oand 20 set between the hinge on ears 17, 18 and 19 of theplate 15. These sets of ears are provided with an axially aligned boreto receive a common pivot bolt 21. This bolt being preferably providedwith a tapered under head portion 22 to fit into acorrespondingly-tapered recess 23 in the ear. This bolt is also threadedthrough one intermediate ear 19 of the plate 15 and.

is provided with a lock nut 24: preferably tapered as at 25 on its innerface to engage 1 a correspondin ly-shaped recess 26 in j the ear 17, bywhic construction it will be seen that'any looseness betweenv the ears18, 19 and 20*,may be taken up by a rotation of the bolt to draw ear 19against car 20 and if .105

looseness occurs between the ears 19 and20 this may be taken up bysetting up the nut -24; This nut also cooperates with the thread in ear19 toform a positive lock for the 'bolt to prevent any relative movementof the bolt in its cars 13' 18 and 19. A wrench 35 is shown above thenut 24 in Figure 2. j

A similar elfect to that above described is obtained by the constructionillustrated in Fl re 4, in which the hinge'plate 27 is provi ed withouter or end ears 28and 29 be-- tween which the ear 30 on the plate 31ex- ,tends. The head of the pivot bolt'32 is pret.

erablg taered as at 33 to engage a correspon ing 'y-shaped recess in theear 29, while this pivot bolt is threaded in the. ear-28.

The outer portion of this ear is counterbored as at 34 to receive acorrespondingly tapered faced nut 25, which nut serves as a lock topositively prevent rotation of the pivot bolt I inits ears 2 8 and 29;also by this improved construction of hinge, it will be seen that thepivot bolt upon being set up will obtain exactly the desired frictionbetween the different hinge ears of the hinge, a lock nut is thenscrewed onto the outer end of the bolt to positively loclt this boltagainst any relative movement to either loosen or tighten the samethereby providing a hinge which will retain the desired frictionalaction be; tween the hinge ears, and if these hinge members shouldbecome worn its desiredfrictional action may be again restored to itsoriginal working condition by a simple adjustment of both the bolt andnut.

\ Bv forming a taper on the under side of the head and on the nut of thebolt and fitnemesis privilege of resorting to all the mechanicalchangesto which the device is susceptible, the invention being definedand limited only by theterms of the appended claims.

We claim:

1. A temple hinge comprising a pair of hinge plates having a pluralityof interengag ng hinge ears, each of the outer ears of the-set having atapering socket formed in its outer face, a pivot bolt extending throughsaid ears and threaded into one of them, said bolt having a tapered headportion seated in one ofsaid tapering sockets, and a tapered binding nutfitting into the corresponding socket in the otl er of said outer earsand threaded onto the end of the bolt to lock the bolt and bind theears.

2. A temple hinge comprising a pair of hinge plates, one having spacedopposite end ears and an intermediate ear, the other of said plateshaving spaced ears fitted between the first mentioned cars, a pivot boltextending through both sets of said ears having a head engaging one endear, and a lock nut engaging the opposite end ear, said bolt being alsothreaded through said intermediate ear.

3. A temple hinge comprising a pair'of hinge plates, one having spacedopposite end ears and an intermediate ear, the other of said plateshaving spaced ears fittedbetween the first mentioned cars, a pivot boltextending through both sets of said ears having a tapered head seated ina correspondingly shaped socket in one end ear, and a tapered lock nutseated in a correspondingly-shaped socket in the opposite end ear, saidbolt being also threaded through said intermediate car, and said boltand nut being independently adjustable to each to regulate the frictionbetween different sets of said hinge cars. In testimony whereof we afiixour signa tures.

(JOHN FIELDINGL JOSEPH P. WHITAKER.

